Brush with detachable fitting for bristle-carrying stocks



June 6, 1950 v E. L. H.-.cosBY BRUSH wm-x DETACHABLE FITTING FORBRISTLE-CARRYING STOCKS mwkww w R m. Q E m c v Q Q ww Filed Nbv. 15,1946 A ltorneyi Patented June 6, 1950 T TAT ES PAT N l l; C E

, 2510,80 1 BRUSH- WITH DETAGHABLE FITTING FOR- BRISTLE GARRYING STOGKSi Eric rec um Hu o Cosby, London, England. Application-November 15, 1946Serial No. 710,113

In Great Britain April 19,,1945

Section 1, Public Law 690, August 8,1946 Patent expires April 19, 1965The invention relates to that class of brush in which the stock carryingthe bristles is detachably secured to the back, and whereby the'stockcan be inserted and held-in the back in either of two directions, suchas is described in United States Patent No. 2,228,754.

The object of the present invention is to improve the construction ofsuch class of brush whereby the back can be lightened in weight and toallow of the back being constructed of plastic or other mouldable orcastable material, further to simplify the catch means for securing thestock to the back.

According to this invention, the bottom of the recess in the back of thebrush for receiving the catch fitting is hollowed-out or recessed toleave a platform or ledge on which the catch fitting rests and in whichthe securing screws can be engaged, a pin or stud is provided on theplatform, shoulders or locating stops are provided in the hollowed-outor recessed portion positioned at a distance apart, lugs or projectionsare provided on the iunder-face of the catch fitting adapted to belocated between the shoulders or locating stops, and a hole is providedin the catch fitting for engaging with the pin or stud in the back.

The invention will be clearly understood from the following descriptionaided by the accompanying drawings, in which:

Figure 1 is a plan of one construction of back. Figure 2 is a section onthe line IIII of Figure 1. Figure 3 is a section on the line III-IlI ofFigure 1. Figure 4 is a plan of the catch fitting. Figure 5 is anunder-plan of same, and Figure 6 a view similar to Figure 2 with thecatch fitting located in the back.

The invention can be carried into effect in various ways as to detailedconstruction. According to this example, the back I is formed with arecess of a shape corresponding to the shape of the catch fitting. Saidrecess is surrounded by a wall 2, the bottom of the recess forming aplatform 3 or support to which the catch fitting is secured by screwspassing through holes 4 in the catch fitting (Figures 4 and 5) engagingin holes 5 in the platform 3.

The platform 3 or bottom of the recess is hollowed-out or recessed as at6 to any suitable height than the depth of the W351 and the forward endof the: wall i'ormed the usual hole 9 o-r'slot. The handle t'll ispreferably formed with a tapering groove H on one or both sides to forma grip for receiving the fingers when the handle is grasped in the hand,and also for reducing the weight of the back.

The catch fitting may be of any suitable construction formed with a holel2 for engaging with the pin 8, and projecting lugs l3 or stops forengaging between the shoulders I when the fitting is positioned in therecess in the back I, the pin 8 taking part of the strain of the fittingin the back and the lugs l3 and shoulders I aligning and retaining thefitting in proper position.

Preferably the catch fitting comprises a plate M or liner having a walll5 around its edge, and in the plate I4 is formed a hollow raised fiatportion It of less area than the area of the plate I4, and connectingone end of the raised portion I6 With the edge of the plate It is acentral raised panel or strip l1. At the other end of the raised portionI6 are two diagonal panels [8 or strips, the panels or strips l1, I8being of slightly less height than the top of the portion It and withtheir upper surfaces in the same plane. In the raised portion 16 isformed a slot l9 or opening similar to the construction described inPatent No. 2,228,754.

To the underside of the plate I4 is secured an under-plate 2|]longitudinally and centrally, the under-plate 20 being convenientlysecured to the plate M by tongues 2| punched out of the plate 14 andbent over the edge of the under-plate 20. The lugs l3 may also bepunched out of the under-plate 20 and bent to be at right angles to theunder-plate 20 and in parallel planes.

In connection with same is a slidable fiat bar 22 having a punched upcatch 23 or hook projecting through the slot l9 in the plate [4, the bar22 having a shank 24. The rear end of the bar 22 is formed with a bentup lug 25, and the forward end of the under-plate 20 is formed with asimilar bent up lug 26, the two lugs being connected by a tension spring21 so that the bar 20 is normally urged forwards in the fitting, the

shape so as to leave side edges of a ledge for under-plate 20 beingformed with a longitudinal slot 28 from the rear end in which the lug 25Works.

The stock with its bristles is constructed in a similar manner to thestock previously proposed, such as for instance in Patent No. 2,228,-

On the rear end of the 754 and is secured in the fitting l4.

The catch fitting is positioned in the recess in the back I with theshank 24 projecting through the hole 9 and with the hole [2 engagingover the pin 8, the lugs l3, I3 being located between the shoulders I, Iand secured therein by screws passing through the holes 4 in the fittinginto the holes 5 in the back.

It will be understood that the back I can be constructed without theextending handle [0.

What I claim as my invention is:

1. A brush comprising a back having a recess therein, and a catchfitting including a spring- -urged lidable catch device for detachablysecuring a bristle carrying stock to the back, the bottom of the recessin the back having a hollowed out portion forming a ledge on which thefitting rests, securing screws for said fitting engageable in saidledge, a pin on said ledge, locating stops in said hollowed out portionat a distance apart, and projections on the underside of the catchfitting adapted to be positioned between said 10- cating stops, saidfitting having a hole therein to receive said pin on said ledge.

2. A brush as defined in claim 1, wherein said catch fitting comprises aplate having a wall around its edge and a raised central portion havingan opening therein, and an under-plate secured to said plate and havinga slot therein, and said catch device comprises a, fiat bar having ahook projecting through said opening in said hollow raised portion andbeing slidably held between said plate and under-plate, a shank on saidbar projecting beyond the catch fitting, a lug on said bar located insaid slot in the underplate, a lug on said under-plate, a tension springconnecting said lugs, and bent-up tongues on said under-plate engageablebetween said locating stops in said hollowed out portion of the back.ERIC LEOPOLD HUGO COSBY.

REFERENCES CITED The following references are of record in the file ofthis patent:

UNITED STATES PATENTS Number Name Date 1,683,530 Cosby Sept. 4, 19282,228,754 Cosby Jan. 14, 1941

